KR100522931B1 - Method for production of fat removal sesame powder from sesame and fat removal powder thereof - Google Patents

Abstract

The present invention relates to skim sesame powder prepared by efficiently removing lipids without denaturing the main components of sesame seeds, and the extraction of sesame lipids is continued using hexane as a solvent of crushed sesame powder with a diameter of 0.42 to 1.25 mm. By performing in a countercurrent method, or by using supercritical carbon dioxide, there is an excellent effect of providing sesame powder that is free of lipids, does not cause denaturation of other components, and is completely free of pesticides.

Description

Method for producing skim sesame powder removed from sesame seeds and skim sesame powder produced therefrom {Method for production of fat removal sesame powder from sesame and fat removal powder

The present invention relates to a method for producing low fat high protein sesame powder, and more particularly, to a method for producing sesame powder containing high content of protein and fiber by removing fat component from sesame seeds.

Sesame is a perennial herbaceous plant ( Sesamun indicum ) belonging to Sesamum in the Pedaliaceae . Seeds are used as food. Sesame is recognized as a particularly valuable flow food among flow plants, which is not known for some time, but is known as a healthful food with various medicines. In the 3rd century BC, China's intentional book, "Nongxunbyeon," sesame seeds are a food that restores the function of the kidneys to vitalize the body. It is written to make good.

The main ingredients of sesame seeds are slightly different depending on the region and harvest time, but they are composed of 52% lipid, 24% protein, 15% sugar, and 3% fiber. According to the amino acid composition of sesame protein, the essential amino acid of sesame seeds satisfies the FAO requirements, and in particular, methionine, arginine, and tryptophan have many characteristics. In addition to these, calcium is present in about 1%, much more than 0.02% of flour, 0.01% of rice or 0.2% of soybeans. Other trace ingredients are rich in iron, selenium, vitamins, etc. B1, B2, etc. are quite abundant and E is also abundant.

Currently, sesame seeds are mainly used to produce sesame oil, and sesame gourd is produced as a by-product, and is mainly used for animal feed. The reason why sesame seeds are not used for food is that most of the sesame oils are compressed, so the skim is brown and the protein is denatured. Therefore, most of them are used as feed, and the food is hardly progressed.

Soybeans and corn, on the other hand, have a high level of oil and protein and starch. The sesame strip of sesame seeds contains a lot of protein, sugar and fiber as described above, and also contains a lot of sulfur-containing amino acids that are easily lacking in plant foods.

In addition, lignans contain about 0.2% of glycosides as glycosides, which are degraded by enzymes in vivo to become free lignan compounds (sesaminol or pinorezinol) and exhibit strong antioxidant activity (H. Katsuzaki, et al. , Biosci. Biotech.Biochem. , 56, 2087 (1992)).

Therefore, food resourceization of skim cakes is worthwhile and urgent. However, sesame cake produced as a by-product of sesame oil production by current hot pressing method is inadequate for edible use because of severe browning and protein denaturation by hot pressing method. This is because it does not fit the taste of modern people who prefer low-fat foods because it contains about 100% fat.

Therefore, the present inventors have diligently tried to prepare a method for effectively removing only fat components without denaturing other nutrients of sesame and preparing skim sesame powder enriched with protein, dietary fiber, calcium and vitamins, resulting in a diameter of 1.25 mm. The sesame powder crushed with a hexane as a solvent was carried out by a continuous countercurrent method, or by using a supercritical carbon dioxide to discover that the lipid is removed with high efficiency to complete the present invention.

In order to achieve the above object, the present invention provides a method for making skim sesame powder by removing lipids from sesame seeds, sesame powder, characterized in that using sesame powder prepared by crushing to 0.42 ~ 1.25mm diameter with sesame seeds It provides a manufacturing method.

If sesame seeds are broken down to less than 0.42mm before lipid removal, the mass transfer rate increases due to the decrease in the size of the crushed powder. However, the descending rate of the sample decreases compared to the lift force of the multi-stage blade. Degreasing sesame powder is also removed at the time of exchange to reduce the yield, and the precipitation rate of the powder is too slow to be suitable for continuous operation. In addition, during supercritical extraction, there is a problem of stopping operation due to pressure drop by blocking the upper membrane, and clogging of the valve and line of the supercritical device by the micro powder passing through the upper membrane. .

If the average diameter is 1.25 mm or less, the lipid removal efficiency is preferably higher than 99% in nucleic acid extraction or supercritical carbon dioxide extraction.

On the other hand, preferably in the method for producing skim sesame powder, the removal of lipids is preferably removed by a continuous countercurrent extraction device using hexane as a solvent or by supercritical extraction using a supercritical carbon dioxide as a solvent.

On the other hand, more preferably, the continuous countercurrent extraction device is provided with a screw conveyor (8) at the lower end of the raw material discharge portion gradually decreasing in diameter toward the end, and has a line pump (9) on one side, raw material discharge The inner peripheral surface of the negative portion is preferably provided with a 0.1mm filtration SUS screen (10) essentially. The screw conveyor (8), the line pump (9), the 0.1mm filtration SUS screen 10 is provided to remove the solvent mixed in the degreasing powder is made at the same time with the extraction is possible a continuous process.

On the other hand, more preferably, the supercritical carbon dioxide in the supercritical extraction is preferably at a temperature of 40 ~ 80 ℃, the pressure of 300-550 atm. Extraction efficiency increases from above 40 ° C, and above 80 ° C there is no increase in extraction efficiency. In addition, the extraction efficiency is increased when it exceeds 300 atm, and when it exceeds 550 atm there is no increase in extraction efficiency.

On the other hand, preferably sesame crushed to 0.42 ~ 1.25mm size is preferably heated to 80 ~ 200 ℃ just before the supercritical carbon dioxide extraction.

If the temperature of the supercritical fluid to be extracted is lower than that of filling the sample, the sample will shrink than the original. As the sample shrinks, the space between the samples in the extractor increases. At this time, the supercritical fluid rising between the samples flows in a wider space when filling, thereby decreasing the flow rate. If the flow rate is lower than the original, the chance of the microparticles rising with the supercritical fluid is reduced, so that the upper filter is not blocked. Therefore, the shrinkage degree of a sample is less than 80 degreeC, and it is unpreferable, while sesame seeds burn out at 200 degreeC and it is not preferable.

The present invention also provides a sesame powder from which lipid is removed by any one of the above extraction methods.

Sesame seeds used in the following examples of the present invention contain 51.9% as a main component of lipids. Other proteins contained 24.5%, sugar 15.1%, and fiber 3.1%. In the present invention, the sesame is easily extracted and extracted with hexane because lipids are efficiently removed but to prevent denaturation or loss of other components.

Hexane is a safe solvent used in the production of soybean cooking oil and has excellent lipid extraction efficiency. In addition to hexane, efficient extraction was possible even with the use of supercritical carbon dioxide, which has recently been spotlighted as a clean solvent. In addition, the supercritical carbon dioxide is advantageous because there is a characteristic that no residual solvent remains after extraction.

For the following examples, the excellence of the method and apparatus for preparing skim sesame powder of the present invention was verified through actual experiments, and the results are shown in the following tables.

Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to the following experiments and examples, but the scope of the present invention is not limited only to the following examples.

Example 1 Pretreatment of Sesame Seeds for Efficient Removal of Lipids

The lipid extraction removal efficiency was measured while changing the properties of the raw sesame seeds. The raw sesame seed was extracted with hexane and supercritical carbon dioxide in the form of seed, pressed flakes and crushed fine particles, and the residual lipid content was measured.

Hexane extraction was carried out by filling 200ml of hexane in the reactor (Fig. 1), and then adding 5g of raw sesame seeds shown in Table 1 per minute, and replacing the hexane with fresh solvent by 20ml / minute. At this time, the rotation speed of the multi-blade and the screw was adjusted to 200rpm. At this time, the height ratio (L / D) to the width of the reactor was 10, the total volume of the reactor was 300ml. This operation for 1 hour, the results are shown in Table 1.

Supercritical carbon dioxide was carried out for 1 hour at 450 atm 60 ° C using the apparatus shown in Figure 2, this condition is a supercritical state.

Lipid removal efficiency measured the weight of the extracted separated lipids, the total amount of lipids contained in sesame seeds was 100% and the weight of the removed lipids in percent.

[Table 1] Lipid removal efficiency according to the form of raw sesame seeds

Raw sesame form Lipid removal efficiency with hexane (%) Lipid Removal Efficiency Using Supercritical Carbon Dioxide (%) Seed form 2.3 2.1 Flake 31.3 27.8 Fine particle form (average diameter 1.25mm or more) 95.6 94.1 Fine particle form (average diameter less than 1.25mm) 99 99.5

As shown in Table 1, the lipid removal efficiency is greatly affected by the shape of the raw sesame seeds. In particular, the smaller the particle size, the better the efficiency, which is thought to be due to the increased contact area between the raw material and the solvent, thereby increasing the removal efficiency. In the case of seed or fragment form, the removal efficiency is not considered to be high due to diffusion limitation.

Example 2 Continuous Countercurrent Extraction for Increased Lipid Removal Efficiency

When hexane is removed as a solvent, a continuous countercurrent extraction method as shown in FIG. 1A is designed to increase efficiency. The sample is injected from the upper part ③ and the solvent is injected from the lower part ⑤. The sample with a large specific gravity descends, the solvent rises, contact occurs and lipids are extracted. In the center is a rod equipped with several blades. By rotating it, the rate of descent of the sample and the rate of rise of the solvent were controlled. When properly controlled, the contact time between the sample and the solvent was greatly increased, and eventually, the mass transfer rate was increased to increase the efficiency of the lipid extraction agent.

In the case of the conventional batch type, the powder is extracted with a solvent and then the solvent is removed using a filter, and then the filtrate is transferred to a dryer, whereas the continuous countercurrent extraction device of the present invention transfers the submerged degreasing powder through the screw conveyor ⑧. The degreasing powder and the solvent mixture between the pitch of the screw and the pitch while moving to the dryer at the same time as the dryer are manufactured to remove the solvent through the hole of the screen by the centrifugal force of the screw and the ⑨line pump between the ⑩0.1mm filtration SUS screen. It became. Therefore, the removal of the solvent mixed in the degreasing powder is made at the same time it is possible to produce an effective degreasing sesame powder.

After filling 200ml of hexane in the reactor, 5g / min of crushed sesame powder passing 95% or more of metal mesh with diameter of 1.25mm was added per minute, and hexane was replaced with fresh solvent by 20ml / min. At this time, the rotation speed of the multi-blade and the screw was adjusted to 200rpm. At this time, the height ratio (L / D) to the width of the reactor was 10, and the total reactor volume was 300 ml. After 60 minutes of operation, the dried sesame powder removed 99% of the lipids.

The above-mentioned method has several advantages over the general batch extraction process, which primarily improves the mass transfer rate and the lipid removal efficiency due to continuous current current. In addition, there is no need for multi-stage extraction, which is required for general batch extraction, which simplifies the process and saves space.

Lipid removal experiments using the above-mentioned methods and apparatus showed 98% lipid removal within 10 minutes.

Example 3 High Efficiency Lipid Removal Method Using Supercritical Fluids

When removing lipids with supercritical carbon dioxide, the extraction method as shown in FIG. 2 was designed to increase efficiency. Raw material powder was filled in the extractor ① and lipids were removed using supercritical CO ₂ supplied through the pump ⑦. The lipid to be extracted and removed was fed to the separator ③ after the pressure was lowered through the pressure regulator ② with supercritical CO ₂ . In the separator, the lipids accumulate down in the liquid state and CO ₂ escapes up in the gaseous state. The gaseous CO ₂ was not discarded, but was liquefied in the cooler ④, stayed in the storage tank ⑤, and fed back to the extractor by the circulation pump ⑦ to remove the lipid.

20 g of crushed sesame powder passing 95% or more of a metal mesh with a diameter of 1.25 mm was extracted for 60 minutes at a flow rate of supercritical carbon dioxide of 1.65 mm / sec. At this time, after fixing the extraction pressure at 350bar and changing the extraction temperature to 35 ~ 100 ℃, the lipid removal efficiency was changed as shown in Figure 3, after fixing the extraction temperature at 70 ℃ and the pressure was changed to 100 ~ 500bar as a result of lipid removal efficiency It was as in FIG. In the above results, the lipid removal temperature of the crushed sesame powder using supercritical carbon dioxide was more than 40 ℃, more preferably 60 ℃ or more, and more preferably 450 bar or more as the lipid removal pressure. As a result, dried sesame powder removed up to 99.8% of lipids.

When filling a fine sample in a general supercritical fluid extractor and extracting and removing lipids with supercritical carbon dioxide, the fine particles move to the upper part of the extractor to block the upper filter, which intensifies the pressure drop inside the extractor and stops the operation. Cases occur frequently. However, a feature of the present invention is characterized in that the sample is heated to a high temperature of 80 ~ 200 ℃ after filling, and extracted with a supercritical carbon dioxide of 60 ~ 80 ℃, which is much lower than this temperature. If the temperature of the supercritical fluid to be extracted is lower than that of filling the sample, the sample will shrink than the original. As the sample shrinks, the space between the samples in the extractor increases. At this time, the supercritical fluid rising between the samples flows in a wider space when filling, thereby decreasing the flow rate. If the flow rate is lower than the original, the chance of the microparticles rising with the supercritical fluid is reduced, so that the upper filter is not blocked.

Experimenting with the above designed method did not block the filter at all. However, experiments using the conventional method had a 60% chance of clogging the upper filter when operated several times. In addition, the devised method has an excellent result of improving the overall efficiency by eliminating the channeling phenomenon during extraction, which reduces the time for extracting and removing lipids by about 20%.

Experimental Example 1. Degeneration of Protein

Currently, sesame gourd produced as a by-product by sesame oil manufacturing method is inadequate for use in food. Severe browning and protein denaturation are the main causes, and protein denaturation is unsuitable for food use because it can affect safety as a food. In order to confirm whether the protein denaturation, the protein components of sesame gourd obtained by the skim sesame powder produced by the present invention and the conventional sesame oil production method was analyzed.

Sesame seeds contain so many different types of proteins that you cannot analyze each of them to see if they are denatured. However, analyzing the total or free amino acids in a sample can determine whether the protein is changing in its entirety. In total amino acid analysis, each sample is placed in a 50 mg test tube and hydrolyzed by adding 15 ml of 6 N HCl solution. At this time, the hydrolysis is continued for 24 hours at 105 ℃. After hydrolysis, the solution was diluted to 50 ml, filtered through a 0.2 micro filter, and 200 µl of the filtrate was dried. The dry matter was dissolved in 200 μl of 0.1 N HCl and used for HPLC analysis.

The free amino acid was extracted by adding 5 g of a sample to a 500 ml Erlenmeyer flask and adding 400 ml of 0.005 M HCl. At this time, extraction conditions were extracted for 30 minutes with stirring at 80 ℃. After cooling, distilled water was added to make 500 ml and filtered through a microfilter. 200 μl of the filtrate was dried and dissolved in 100 μl of pure water, followed by OPA derivatization by the above method and analyzed by HPLC.

HPLC analysis conditions were as follows. The column used CUROSIL PFP (4.6 (250 mm, 5 micron, phenomenex), the solvent conditions A solvent is MeOH: THF: 0.02M sodium acetate (pH5.9) = 20: 2.5: 77.5, v / v B The solvent was MeOH: THF: 0.02M sodium acetate (pH5.9) = 80: 2.5: 17.5, v / v The detection time, solvent A, solvent B and flow rate were as follows.

TABLE 2 HPLC Analysis Conditions

Minutes A solvent B solvent Flow rate 0 100 0 1ml / min 2 100 0 1ml / min 15 73 27 1ml / min 35 0 100 1ml / min 40 100 0 1ml / min

The injection amount was 10 mu l, the fluorescence detector was Exitation lambda = 360, Emission lambda = 450 and the column temperature was 40 ℃.

In Table 3 and Table 4, three types of samples were analyzed and compared. The raw material was roasted sesame seeds at 200 ° C. for 30 minutes. As shown in Table 3, the total amino acid content of the skim sesame powder produced by the present invention did not show a large change compared to the raw material, but the sesame gourd as a by-product from the existing sesame oil manufacturing method decreased by 21.5%. In addition, specific amino acids were greatly reduced, with aspartic acid, arginine, arginine, serine, and threonine. In particular, arginine decreased by 59%. Table 3 shows the results of free amino acid analysis. In the case of the skim sesame powder produced according to the present invention, only a slight amount of free amino acid content was reduced compared to the raw material. However, the free amino acid content of sesame gourd by the conventional method was greatly reduced, which was reduced by 56.5% based on the total amount. More seriously, other amino acids except proline and valine were not detected. Through these experimental results, the sesame gourd protein remaining after sesame oil production by the conventional method is considered to be severely denatured. In conventional crimping or expeller methods, the temperature of raw sesame seeds is very high during milking, which is thought to be the cause of protein denaturation.

Table 2 Total amino acids content by sample (mg%, dry base)

         sample amino acid Raw Material (Sesame, 200 ℃ Power Distribution) Sesame gourd (by-product of conventional sesame oil production) Sesame powder (invention) Asp 3785.9 2796.7 3730.5 Glu 9215.6 8233.4 9156.9 Ser 1477.2 302.4 1401.5 His 1077.5 801.8 1072.6 Gly 2541.8 2152.3 2550.1 Thr 1452.9 548.9 1404.6 Ala 2573.1 2455.9 2521.7 Arg 4278.2 1743.6 4220.9 Tyr 1897.4 1871.5 1876.5 Cys 159.5 - 145.7 Val 2317.6 2176.3 2320.9 Met 1354.7 1130.4 1311.3 Phe 2249.1 2010.5 2208.3 IIeu 1802.4 1689.6 1796.4 Leu 3597.5 3582.9 3588.7 Lys 428.6 298.9 413.5 Pro 1854.8 1219.8 1816.6 Total 42,063.8 33,014.9 41,536.7

Table 3 Free amino acids content by sample (mg%, dry base)

         sample amino acid Raw Material (Sesame, 200 ℃ Power Distribution) Sesame gourd (by-product of conventional sesame oil production) Sesame powder (invention) Asp 7.4 - 7.1 Glu - - - Ser - - - His 2.5 - 2.4 Gly 0.5 - 0.6 Thr 1.2 - 0.9 Ala 1.4 - 1.4 Arg 4.2 - 3.9 Tyr - - - Cys - - - Val 4.3 1.9 4.1 Met 3.8 - 3.5 Phe 3.9 - 3.4 IIeu 2.2 - 1.8 Leu 2.3 - 2.1 Lys - - - Pro 40.1 30.2 39.8 Total 73.8 32.1 71.0

Experimental Example 2: Analysis of residual pesticides in sesame powder (simultaneous multicomponent analysis method)

The presence of residual pesticides in sesame powder was investigated using the following simultaneous multicomponent analysis.

(1) 25g of sesame powder from which lipid was removed was taken.

(2) 100 ml of acetonitrile, an extraction solvent, was extracted using a homogenizer.

(3) The acetonitrile solution was filtered using a Buchner funnel and placed in an empty vacuum flask.

(4) 50 ml of acetonitrile, an extraction solvent, was reextracted using a homogenizer.

(5) After filtration using a Buchner funnel, the filtrate was combined with the filtrate collected in step 3 and then proceeded.

(6) The filtrate was concentrated using a vacuum evaporator.

(7) 5 ml of acetone was added to the concentrated sample to dissolve the sample.

(8) 148 residues of pesticides were analyzed using gas chromatography (GC).

Groups I and II were analyzed using gas chromatography / mass spectrometry (GC / MSD) after gas chromatography analysis under the conditions shown in Table 1 below.

Gas chromatographic analysis conditions (Table 5) and pesticide names (148 species) used in the screen (Table 6) were as follows.

[Table 5] Analysis conditions of GC (model: hp 6890)

division Group (Ⅰ) Group (Ⅱ) Confirm Detector NPD (Model: hp5890) ECD (Model: hp6890) MSD (Model: hp5973) Inlet temp. 260 ℃ 260 ℃ 260 ℃ Detector Temp. 280 ℃ 280 ℃ 280 ℃ Flow rate lml / min 1ml / min 1ml / min Column DB-17 (30m × 0.25mm × 0.25㎛) Ultra-2 (50m × 0.2mm × 0.25㎛) HP-5MS (30m × 0.25mm × 0.25㎛) Oven temp. Program 80 ℃ (2min) → 10 ℃ / min → 280 ℃ (15min) 80 ℃ (2min) → 10 ℃ / min → 280 ℃ (25min) 80 ℃ (2min) → 10 ℃ / min → 280 ℃ (10min)

Table 6 Name of pesticides used for screening (148 species)

(1) Group (Ⅰ)

No. NPD Mix. One NPD Mix. 2 NPD Mix. 3 NPD Mix. 4 NPD Mix. 5 One Ethion Edifenphos Dimethylvinphos Chlorfenapyr Pyraclofos 2 Thiometon Pirimicarb Omethoate Diphenylamine Pyridaben 3 Isofenphos Prometryn Diethofencarb Fenobucarbo Tebufenpyrad 4 Mecarbam Triadimefon Cressoxim-methyl Fipronil Isoprothiolane 5 Parathion Thiobencarb Metaaxyl Fludioxonil 6 Pirimphos-ethyl Flusilazole Alachlor Iprobenfos 7 Carbophenothion Cyprodinil Oxadiazon Tebutryn 8 Pirimphos-methyl Chlorfenvinphos Simazine Prothiofos 9 Tolclofos-methyl Tolyfluanid Fenoxycarb Fenothiocard 10 Parathion-methyl Diphenamid Paclobutrazol Cadusafos 11 Triazophos Fosthiazate Bendicarb 12 Pyrazophos Fenamiphos Carbofuran 13 Fenazaquin Vamidothion Mepanipyrim 14 Tricyclazole Espprocarb 15 Tebufos Etoxazole 16 Cyproconazole 17 Mepronil

(2) Group (Ⅱ)

No. ECD Mix. One ECD Mix. 2 ECD Mix. 3 ECD Mix. 4 ECD Mix. 5 One Ethalfluralin Nitrapyrin Mevinphos Diuron Chlordane 2 α-BHC γ-BHC Diazinon Ethoprophos Triflumizole 3 Dicloran Chrorothalonil Metobrorouson Dimethoate Trifuralin 4 Quintozene Vinclozolin Propane β-BHC o.p＇-DDD 5 δ-BHC Fenitrothion Acetochlor Disulfoton o.p＇-DDE 6 Mettribuzin Diclofluanid Marathion Etrimfos Hexaconazole 7 Chlorpyrifos-Me Chlorpyrifos Metolachlor Penthion Nuarimol 8 Heptachlor Penconazole Dicopol Captan Nonachlor (trans) 9 Broromacil Phenthoate Pendimethalin Oxadixyl Nonachlor (cis) 10 Aldrin Folpet Methidathion Dinocap 11 Heptachlor-epoxide Prolenofos Butachlor Carboxin 12 Procymidone Oxyfluorfen Chrorobenzilate Azinphos-Me 13 Tralomethrin o.p＇-DDT Phosmet Permethrin 14 α-Endosulfan Endosulfan-sulfate Phosalone Fenbuconazole 15 p.p＇-DDE Diclofop-Me Cyfluthrin Microbutanil 16 Dieldrin Captafol Cypermethrin 17 Endrin Bifenthrin Fenvalerate 18 β-Endosulfan Bromopropylate Fluvalinate 19 p.p＇-DDD Methoxychlor Deltamethrin 20 p.p＇-DDT Penarimol

21 Iprodione Prochloraz 22 EPN Chinomethionat 23 Tetraradifon 24 λ-cyharothrin

As a result, no pesticides were detected.

As described above, the present invention, as described through the above examples and experimental examples, removes lipids from sesame seeds with high efficiency, does not cause denaturation of other components, and features a manufacturing method of skim sesame powder from which pesticides are completely removed. Component composition of the skim sesame powder prepared by removing 99% lipids by the method proposed in the present invention is as follows.

[Table 7] Composition of skim sesame powder

    Composition protein Sugar Fibrous Geology calcium Etc content(%) 51.5 29.6 6.5 1.0 2.5 8.9

Degreasing sesame powder obtained through the present invention as shown in Table 7 is a high protein food with a protein content of more than 50%. In addition, the protein contained is not denatured during the lipid removal process of the present invention can be said to be excellent food sesame powder. Moreover, it can be called a high fiber, high calcium food containing 6.5% fiber and 2.5% calcium.

1A shows a continuous countercurrent lipid removal process using hexanes.

① Continuous countercurrent extractor with rotating multiple blades

② Dryer ③ Raw powder in

④ solvent out ⑤ solvent in

⑥ Degreasing powder out ⑦ Dried degreasing sesame powder

⑧ Screw Conveyor ⑨ Line Pump

⑩ 0.1mm filtration SUS screen

1B is an enlarged view of a portion of a 0.1 mm filtered SUS screen.

1C is a partially enlarged view of the screw conveyor (8).

Figure 2 illustrates a lipid removal process using supercritical carbon dioxide.

① Extractor ② Pressure reducer

③ CO ₂ -Oil Separator ④ Cooler

⑤ Liquefied CO ₂ reservoir ⑥ CO ₂ replenishment supply tank

⑦ CO ₂ circulation pump ⑧ Heat exchanger

⑨ Geological removed

3 is a graph showing the change in lipid removal efficiency (%) when the extraction temperature is changed to 35 to 100 ° C. after fixing the extractor's pressure to 350 bar pressure when removing lipid with supercritical carbon dioxide.

Figure 4 is a graph showing the change in lipid removal efficiency (%) when the pressure is changed to 100 ~ 500 bar after fixing the extraction temperature of the extractor at 70 ℃ when removing lipid with supercritical carbon dioxide.

Claims (7)

delete In the method of removing lipid from sesame to make skim sesame powder, A method for producing skim sesame powder, characterized in that the sesame powder obtained by crushing the sesame seeds with a diameter of 0.42-1.25 mm is removed by a continuous countercurrent extraction apparatus using hexane as a solvent. In the method of removing lipid from sesame to make skim sesame powder, A method for producing skim sesame powder, characterized in that the lipid of sesame powder obtained by crushing sesame seeds with a diameter of 0.42-1.25 mm is removed by supercritical extraction using supercritical carbon dioxide as a solvent. The method of claim 2, The continuous countercurrent extraction device is provided with a screw conveyor (8) at the center of the lower end of the raw material discharge portion gradually decreasing in diameter toward the end, a line pump (9) on one side thereof, 0.1mm on the inner peripheral surface of the raw material discharge portion Method for producing skim sesame powder, characterized in that it is essentially provided with a filtered SUS screen (10). The method of claim 3, The supercritical carbon dioxide is a manufacturing method of degreased sesame powder, characterized in that the temperature of 40 ~ 80 ℃, 300 ~ 550 atm. The method of claim 3, Method for producing skim sesame powder, characterized in that the sesame is heated to 80 ~ 200 ℃ before supercritical carbon dioxide extraction. Sesame powder from which lipids have been removed by the method according to any one of claims 2 to 6.